Curve Operations

Selecting Curves

Curves may be selected by clicking on the curve. To select multiple curves, hold down the control key. Curves may also be selected by checking the associated check box in the legend window.

Deleting Curves

To delete a curve (or curves), select it (or them) then press the Erase selected curves button. Any y-axis that is left empty after deleting curves from it will automatically be deleted. By default any grids left empty after deleting curves from it will also be deleted. This action can be overridden using an option setting. Refer to Graph/Probe/Data Analysis Options

Hiding and Showing Curves

A curve may be hidden without it actually being deleted. This is sometimes useful when there are many curves on a graph but the detail of one you wish to see is hidden by others. In this instance you can temporarily remove the curves from the graph. To hide a curve (or curves) select it (or them) then press the Hide selected curves button. To show it (or them) again, press the Show selected curves button.

Re-titling Curves

You can change the title of a curve by selecting it then pressing the Name curve button. This will change the name of the curve as displayed in the legend panel. (Above main graph area and below toolbar)

Highlighting Curves

You can highlight one or more curves so that they stand out from the others. This is useful if there are many overlapping curves displayed.

To Highlight Curves

Select the curves you wish to highlight then press 'H' or menu Curves > Highlight Selected Curves.

To Highlight Curve Divisions

For grouped curves created from multi-step analyses, you can highlight individual divisions. Position the small cross cursor over the curve of interest then select right-click menu Highlight > Highlight current division

To Unhighlight Curves

Select the curves you wish to unhighlight then press 'U' or menu Curves > Unhighlight Selected Curves.

To Unhighlight All Curves

Select menu Curves > Unhighlight All Curves.

Moving and Copying Curves Between Graphs

The menus Edit > Copy, Edit > Cut and Edit > Paste may be used to move and copy curves between graph sheets. Note that these operations use an internal clipboard and do not place any data in the system clipboard.

The internal clipboard uses an efficient method for transferring curves that uses very little memory even if the curve is large. Also, if you copy a curve, the data itself is not copied internally; the two curves just reference the same data. This makes copying a memory efficient operation.

To Move a Curve to a New Graph Sheet

To Copy a Curve to a New Graph Sheet